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FCC Part 15 Radio Frequency Devices
Section 15.239

The Federal Communications Commission (FCC) is the authority in the United States of America that creates and enforces the use of airwaves throughout the entire radio frequency spectrum. This group of documents contains the entirety of the FCC Part 15 regulations that concern unlicensed radio frequency devices. As with all government documents, this material is in the public domain and may be freely copied so long as the content is not changed. This copy is provided as a convenience for RF Cafe visitors. 

Click here for the Table of Contents.

 
[Code of Federal Regulations]
[Title 47, Volume 1]
[Revised as of October 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR15.239]
[Page 815]
 
                       TITLE 47--TELECOMMUNICATION
 
              CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION
 
PART 15_RADIO FREQUENCY DEVICES--Table of Contents
 
                     Subpart C_Intentional Radiators
 
Sec. 15.239  Operation in the band 88-108 MHz.
    (a) Emissions from the intentional radiator shall be confined within 
a band 200 kHz wide centered on the operating frequency. The 200 kHz 
band shall lie wholly within the frequency range of 88-108 MHz.
    (b) The field strength of any emissions within the permitted 200 kHz 
band shall not exceed 250 microvolts/meter at 3 meters. The emission 
limit in this paragraph is based on measurement instrumentation 
employing an average detector. The provisions in Sec. 15.35 for 
limiting peak emissions apply.
    (c) The field strength of any emissions radiated on any frequency 
outside of the specified 200 kHz band shall not exceed the general 
radiated emission limits in Sec. 15.209.
    (d) A custom built telemetry intentional radiator operating in the 
frequency band 88-108 MHz and used for experimentation by an educational 
institute need not be certified provided the device complies with the 
standards in this part and the educational institution notifies the 
Engineer in Charge of the local FCC office, in writing, in advance of 
operation, providing the following information:
    (1) The dates and places where the device will be operated;
    (2) The purpose for which the device will be used;
    (3) A description of the device, including the operating frequency, 
RF power output, and antenna; and,
    (4) A statement that the device complies with the technical 
provisions of this part.
[54 FR 17714, Apr. 25, 1989; 54 FR 32340, Aug. 7, 1989]



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